Resilient tire.



E. RADKE.

RESILIENT TIRE.

APPLICATION FILED APR 24, 1914.

1,132,031 Patented Mar.16,1915.

a. J, a m /0 4 ,,sion of a which EMIL mom or BLUE EARTH, mrnunsem.

BESILIENT TIRE.

ssence-r,

Specification of Letters Patent.

Patented Mar. 16, 1915.

Application filed April 24, 1914. Serial No. 834.182.

ll 1U volume it may concern Be it hnownthat I, EMIL RADKE, a citizen of the United States, residing at Blue rlarth, in the county of Faribault and State of hlinncso a, have invented a new an useful Resilient Tire; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to it appcrtains to make and use the in ention relates to a new and useful of the invention is the provitlrc of this design, comprising a series of spring coil sections arranged in the usual autovvheel tire casing, and joined in sequence, and to be substituted in lieu of the 'usl'aal pneuunitic tire.

The in ention comprises further features and cmnhination of parts, as hereinafter set forth, shown in the drawings and claimed. In the drau iugsz Figure l is a sectional view tl 'm gh a portion of an automobile wheel t n r hcoving the same constructed in fu ivf'lllzlllifc with the invention. Fig. 2 is a .ysvrrse sectional View on line 2-2- of F n. 2% is a detail perspective View oi the coil spring sections.

-' more especially to the drawrates the usual form of hub acs *3, which are connected to the (win: of clench rim 3, on which is the usual outer tire casing at. This a held on the rim 3 by the clench the interior of the casing 4 is a series coil spring sections 5 constructr-d oi spring: sheet metal. Each end of each wil Xrrangcd on 1 an angular plate 8 connected to .e radially extending portions 8 ular plates are provided with u-nings 13, and passing through it" the adjacent lateral portions 1:9 of said plates are bolts 9 having nuts 10,

the several spring coil sections in The opposite edges 14 of the ccnvolutious of each section are closer leg-t ier than the opposite edges 15. Each on comprises three convlutions tonne spring sheet metal, the central con won 5 and the two end convolutions 5". The ventral convolution is extremely broad, substantial, firm, and mobile, yet there is suilircut :nnount of resiliency to enable the tire to yichl and then resume its normal shape. The end convolutions 5 gradually taper oil as shown, and their extremities are free, that is, unattached, thereby insurmg resiliency.

In arranging the spring coil sections in the tire, and in sequenceas shown in the drawings, one part 10 of the tire casing 4 is placed, in engagement with one of the clench flanges 5. The several spring coil sections are then connected as shown and placed about the rim of the wheel inside the casing 4. In placing the series or chain of sections about the rim, it is necessary to stretch the series of springs sufficiently so as to pass over the other clench flange 5. The opposite part 16 oi the casing is then folded over the serie springs or coil sections, and subseo 'ucn the coil sections are pushed toward one s by bearing upon the outer side surface of ciently so that the said opposite l of the casing 4- may be forced iu.engagement with the other clcurh flange Hon ever, before forci g; the casing 4: in place as above stated, the nuts upon said bolts 9 are adjusted sulliciently to bring the see-- tions rcquisitely close together, whereby after the casing l has ed in eugragenient with the 4 3 of said rim 3, the spring! coil soc mus will heat laterally outwardly upon the parts 10 and keep thorn in engagement i'vith the clench flanges i. In this manner the resilient tire i.. con structed, and this stnuture has been found comparatircly practi al and essential.

The intention having been set forth, what is claimed as new and useful is 1. .lu combination, a Wheel clcnch rim, a tire casing. therefor. a series of circumfen cntially extending coil spring sections constructed of spring sheet metal, means for connecting the sections in sequence. said sc ries of spring coil sections being iucased in the tire casing and casing in engagement with the clench flanges of the rim. each spring section comprising a central broad convolution and two end convolutions, which are spaced apart from the central c nvolution, said end our volutions being! gradually tapered ofl toward their extremities and being free. said tapered oil tree cud couvolutions lying transversely of the tread of the tire and terminating: adjacent where the sections are connected 2, A resilient parts it) acting to hold the tire prising a series of circumferentially extended spring coil sections constructed of spring sheet metal, each section comprising a central convolution, and two end conv'olutions, means for connecting the sections in sequence, said means comprising lugs secured to the adjacent portions of the central con- 'volntions of the sections, said lugs having transversely dis osed elongated slots, means passing through the slots to connect the lugs, said end. convolutions being gradually tapered oif toward their extremities and being free, and lying and. extending transversely of the tread of the tire and terminating adjacent Where the sections are connected.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

EMIL RADKE. \Vitnesses F. P. BROWN, GEO. A. KING. 

